CN102059980A - LED (light-emitting diode) illuminant sill plate with uniform luminescence - Google Patents

LED (light-emitting diode) illuminant sill plate with uniform luminescence Download PDF

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Publication number
CN102059980A
CN102059980A CN2010105471845A CN201010547184A CN102059980A CN 102059980 A CN102059980 A CN 102059980A CN 2010105471845 A CN2010105471845 A CN 2010105471845A CN 201010547184 A CN201010547184 A CN 201010547184A CN 102059980 A CN102059980 A CN 102059980A
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China
Prior art keywords
led
luminous
light guide
leaded light
lgp
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CN2010105471845A
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Chinese (zh)
Inventor
李�杰
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Shanghai Real Industrial Co Ltd
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Shanghai Real Industrial Co Ltd
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Priority to CN2010105471845A priority Critical patent/CN102059980A/en
Publication of CN102059980A publication Critical patent/CN102059980A/en
Pending legal-status Critical Current

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Abstract

The invention relates to an LED (light-emitting diode) illuminant sill plate with uniform luminescence. The LED illuminant sill plate comprises a light guide pate, wherein the plate end of the light guide plate is provided with an LED, and the luminous component of the LED is embedded in the light guide plate. The LED illuminant sill plate with uniform luminescence is characterized in that the light guide plate is manufactured with light guide spots, the light guide spots at the position close to the LED are scattered, and the light guide spots at the position far from the LED are thick; the light guide spots being scattered means that the intervals between the adjacent light guide spots are long, and the light guide spots being thick means that the intervals between the adjacent light guide spots are short; and the light guide spots are concave pit points manufactured on the surface of the light guide plate with a laser or mould pressing or molding method. The LED illuminant sill plate with uniform luminescence mainly solves the technical problem that the light emitted by the LED of the existing limousine illuminant sill plate gradually attenuates in the light guide plate, and as the distance between a luminescent tube and the light increases, the ray is weakened gradually, and is an illuminant device created with uniform luminous intensity at each position of narrow and long luminescent plates such as the limousine illuminant sill plate to strengthen the attractive and comfortable illuminant effect.

Description

The luminous sill plate of a kind of luminous uniform LED
Technical field
The present invention relates to the luminous sill plate of LED that automobile decoration is used, the luminous sill plate of particularly a kind of luminous uniform LED.
Background technology
The existing luminous sill plate of car mainly is the luminous plaque that adopts LED, comprises panel, and sign is arranged on the panel, luminous plaque is equipped with in the back side of panel and the cooresponding position of described sign, and this luminous plaque is formed by three layers, is followed successively by bright enhancement film from front to back, LGP, reflective membrane.LED is equipped with at two ends at LGP, and the luminous componen of LED embeds in the LGP, connects by lead between the LED.It can send the light of required color at night, has promptly played the effect of decorating, and can reach advertising effect again.
Car side sill space, the luminous sill plate of car place generally all is long narrow strip, and its Width is small-sized, and lengthwise dimension is very big.Existing light-emitting device is equipped with LED at the two ends of LGP, very high in nearly luminous pipe end brightness, because its light that sends is decay gradually in LGP, along with the increasing of luminotron distance, its light weakens gradually, existing all light measures are difficult to make luminous plaque, and luminous intensity is even fully along its length, and visual effect is decorated in influence.
Summary of the invention
The object of the present invention is to provide the luminous sill plate of a kind of luminous uniform LED, mainly solve the existing luminous sill plate of car, because the light that its LED sends is decay gradually in LGP, along with the increasing of luminotron distance, the technical matters that its light weakens gradually, it is a kind of createing at all uniform light-emitting device of each position luminous intensity of long narrow shape luminous plaques such as the luminous sill plate of car, to strengthen beautiful and comfortable illumination effect.
For achieving the above object, the present invention realizes like this.
The luminous sill plate of a kind of luminous uniform LED, it comprises LGP, and this LGP plate end is equipped with LED, and the luminous componen of this LED embeds in the LGP; It is characterized in that: make the leaded light point on this LGP, dredge at position leaded light point near LED, close at position leaded light point away from LED; Described leaded light point is dredged and is meant that the spacing between the adjacent leaded light point is big, and described leaded light point is close to be meant that the spacing between the adjacent leaded light point is little; Described leaded light point is the pit point of getting on the LGP surface with the method for laser or mold pressing or molding.
The luminous sill plate of described luminous uniform LED is characterized in that: being provided with in the following manner apart from ai between the described leaded light point:
Ai=a 1+ d (i-1), the span of i is 1 to n;
Wherein, d=(an-a 1)/(n-1), n be a certain LED length of illumination direction cut apart hop count, a 1For from the LGP of LED farthest between 2 adjacent leaded light points apart from length, an be on the LGP at the most close LED place between 2 adjacent leaded light points apart from length.
The luminous sill plate of described luminous uniform LED, it is characterized in that: the luminous sill plate of described LED comprises panel, and sign is arranged on the panel, luminous plaque is equipped with in described back side of panel and the cooresponding position of described sign; This luminous plaque is formed by three layers, is followed successively by bright enhancement film, LGP, reflective membrane from front to back.
The present invention's advantage compared with prior art is: the present invention makes the leaded light point on LGP, dredges at the position leaded light point near LED, puts close usefulness at the position leaded light away from LED, can make the luminous plaque surface light emitting even like this.
Description of drawings
Fig. 1 is that the leaded light point on the LGP of the present invention is arranged by arithmetic progression in the one dimension direction.
Fig. 2 is that the reflective spot on the LGP of the present invention is arranged by arithmetic progression at two-dimensional directional.
The specific embodiment
The invention provides the luminous sill plate of a kind of luminous uniform LED, it comprises LGP, and this LGP plate end is equipped with LED, and the luminous componen of this LED embeds in the LGP; Make the leaded light point on this LGP, dredge at position leaded light point near LED, close at position leaded light point away from LED; Described leaded light point is dredged and is meant that the spacing between the adjacent leaded light point is big, and described leaded light point is close to be meant that the spacing between the adjacent leaded light point is little; Described leaded light point is the pit point of getting on the LGP surface with the method for laser or mold pressing or molding.
The luminous sill plate of described luminous uniform LED is characterized in that: being provided with in the following manner apart from ai between the described leaded light point:
Ai=a 1+ d (i-1), the span of i is 1 to n;
Wherein, d=(an-a 1)/(n-1), n be a certain LED length of illumination direction cut apart hop count, a 1For from the LGP of LED farthest between 2 adjacent leaded light points apart from length, an be on the LGP at the most close LED place between 2 adjacent leaded light points apart from length.
The luminous sill plate of described LED comprises panel, and sign is arranged on the panel, and luminous plaque is equipped with in described back side of panel and the cooresponding position of described sign; This luminous plaque is formed by three layers, is followed successively by bright enhancement film, LGP, reflective membrane from front to back.
Mentality of designing of the present invention is such.
Compare with the LED light-emitting area when the LGP area, when its ratio was very big, the LED light source was approximately point source of light.In the transparent light guide plate,, make its bright and dark light inequality on whole luminous plaque face because the light ray propagation that point source of light is sent has attenuation.In LGP, with the pit point (being the leaded light point) that the method for laser or mold pressing or molding is got on the LGP surface, can be to LGP surface reflection line, leaded light point is close more in a certain position, and reflected light is strong more.Utilize this principle, comparatively intensive leaded light point is made in position that can be a little less than light, in the strong position of light, makes comparatively sparse leaded light point.
The power of corresponding a certain position light in the LGP, relevant with position and quantity that luminotron is arranged.Arrange than under the complicated situation that at luminotron the strong and weak rule of a certain position light is also complicated.At this moment, luminous point arranges that available test method is definite, promptly at first according to the strong and weak definite a kind of luminous point arrangement of light, adjusts luminous point repeatedly and arrange after test, till the luminous point arrangement makes surperficial each the position light intensity of reflector evenly.
Arrange that at luminotron the layout available digital formula of luminous point is simulated under the situation of comparatively simple rule.For example, light-emitting diode is in end arranged cells in LGP, the lumination of light emitting diode end face is when the length direction of long narrow LGP, the light wave that light-emitting diode sends in the LGP material along in the communication process of LGP length direction, its light intensity is decayed gradually. and the amplitude after its decay is simulated with mathematical formulae, meets the rule of arithmetic progression.
The asking substantially of arithmetic progression closed formula and is
Sn=n (a 1+ an)/2, formula (1)
In the formula: Sn be and, n is an item number, a 1Be first term, an is not for
This formula is in the concrete application of the calculating of LGP surface reflection lattice array, and Sn is the total length of luminous plaque, and n is the hop count of cutting apart of length direction, a 1For from the luminous plaque of light-emitting diode farthest between reflective spot apart from length, the light intensity of its position is the most weak, an be on the luminous plaque at the most close light-emitting diode place between two reflective spots apart from length, the light intensity of its position is the strongest.In order to make the light intensity on the whole plate face of luminous plaque even, the arrangement regulation of reflective spot is on the luminous plaque, at numerical value a 1End is that the weak position of respective light intensities will have intensive relatively reflective spot, light is reflected to the luminous plaque surface, to strengthen the light intensity on this luminous plaque surface, position.On the contrary, at numerical value an position, just require to have sparse reflective spot that light is reflected to the luminous plaque surface, to weaken light intensity, totally to reach the effect of each position light intensity unanimity on this luminous plaque surface, position.Like this, the numerical value of luminous point density require and above-mentioned equal difference numerical example in from a 1Every length numerical value to an is one to one.
Before getting ready with the method for laser or mold pressing or molding, calculate each concrete numerical value of ai in the ordered series of numbers in formula (1) with the arithmetic progression formula earlier, Sn is that the total length of luminous plaque is known, and n is an item number, a 1Can specify initial value according to requirement with the value of an to light intensity, in view of the above, variable being changed to of formula (1)
n = 2 Sn a 1 + an Formula (2)
Can obtain according to formula (2) and to cut apart several n values. the formula of the tolerance d of arithmetic progression is
d = an - a 1 n - 1 Formula (3)
After obtaining tolerance d by following formula, just can obtain the value ai of i item in the arithmetic progression
ai＝a 1+d(i-1)
List the ai numerical tabular by the above-mentioned ai numerical value of obtaining, according to this numerical tabular array chart that reflective spot arranges that can in CAD software or coredraw software, draw.
Need to prove: if a that tentatively draws up 1Improper with an value in back on probation, cross by force or excessively as light, then can be according to circumstances with a 1Or the revision of an value, perhaps a 1Revise simultaneously with an, recomputate each ai value after the revision,, carry out array of figure again and arrange, till meeting the requirements according to ai value row numerical tabular again.
Below be that numerical calculation is given an example.
Sn=200, a 1Get 1, an gets 3,
Figure BSA00000348741300053
a i=1+0.02 (i-1)
a iThe part numerical tabular as follows:
I a i I a i I a i I a i I a i
1 1 21 1.4 41 1.82 61 2.22 81 2.62
2 1.02 22 1.42 42 1.84 62 2.24 82 2.64
3 1.04 23 1.44 43 1.86 63 2.26 83 2.66
4 1.06 24 1.46 44 1.88 64 2.28 84 2.68
5 1.08 25 1.48 45 1.90 65 2.30 85 2.70
6 1.1 26 1.5 46 1.92 66 2.32 86 2.72
7 1.12 27 1.52 47 1.94 67 2.34 87 2.74
8 1.14 28 1.54 48 1.96 68 2.36 88 2.76
9 1.16 29 1.56 49 1.98 69 2.38 89 2.78
10 1.18 30 1.58 50 2.00 70 2.40 90 2.80
11 1.2 31 1.60 51 2.02 71 2.42 91 2.82
12 1.22 32 1.62 52 2.04 72 2.44 92 2.84
13 1.24 33 1.64 53 2.06 73 2.46 93 2.86
14 1.26 34 1.68 54 2.08 74 2.48 94 2.88
15 1.28 35 1.70 55 2.10 75 2.50 95 2.90
16 1.3 36 1.72 56 2.12 76 2.52 96 2.92
17 1.32 37 1.74 57 2.14 77 2.54 97 2.94
18 1.34 38 1.76 58 2.16 78 2.56 98 2.96
19 1.36 39 1.78 59 2.18 79 2.58 99 2.98
20 1.38 40 1.80 60 2.20 80 2.60 100 3.00
See Fig. 1 and Fig. 2 by the leaded light point arrangement plan that above data are manufactured, Fig. 1 is that the leaded light point is arranged by arithmetic progression in the one dimension direction, and Fig. 2 is that the leaded light point is arranged by arithmetic progression at two-dimensional directional.
Being preferred embodiment of the present invention only in sum, is not to be used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application claim change and modification, all should be technology category of the present invention.

Claims (3)

1. luminous sill plate of luminous uniform LED, it comprises LGP, and this LGP plate end is equipped with LED, and the luminous componen of this LED embeds in the LGP; It is characterized in that: make the leaded light point on this LGP, dredge at position leaded light point near LED, close at position leaded light point away from LED; Described leaded light point is dredged and is meant that the spacing between the adjacent leaded light point is big, and described leaded light point is close to be meant that the spacing between the adjacent leaded light point is little; Described leaded light point is the pit point of getting on the LGP surface with the method for laser or mold pressing or molding.
2. the luminous sill plate of luminous uniform LED according to claim 1 is characterized in that: being provided with in the following manner apart from ai between the described leaded light point:
Ai=a 1+ d (i-1), the span of i is 1 to n;
Wherein, d=(an-a 1)/(n-1), n be a certain LED length of illumination direction cut apart hop count, a 1For from the LGP of LED farthest between 2 adjacent leaded light points apart from length, an be on the LGP at the most close LED place between 2 adjacent leaded light points apart from length.
3. the luminous sill plate of luminous uniform LED according to claim 1 and 2, it is characterized in that: the luminous sill plate of described LED comprises panel, and sign is arranged on the panel, luminous plaque is equipped with in described back side of panel and the cooresponding position of described sign; This luminous plaque is formed by three layers, is followed successively by bright enhancement film, LGP, reflective membrane from front to back.
CN2010105471845A 2010-11-17 2010-11-17 LED (light-emitting diode) illuminant sill plate with uniform luminescence Pending CN102059980A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108055863A (en) * 2015-09-17 2018-05-18 Zkw集团有限责任公司 In pixel light optical mode light source arrangement in the block

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2598805Y (en) * 2003-02-17 2004-01-14 陈冠旭 Luminescent pedal structure for car door
CN2686928Y (en) * 2003-12-30 2005-03-23 上海圣禄汽车配件制造有限公司 Automobile door sill pedal thin board sudden light guide device
CN2824090Y (en) * 2005-01-21 2006-10-04 谢剑斌 Reinforced backlight module for astronautical stage liquid crystal display
CN2929456Y (en) * 2006-07-06 2007-08-01 伟志智能有限公司 Expansion type LED lighting source
WO2010038519A1 (en) * 2008-09-30 2010-04-08 シャープ株式会社 Illuminating device, display device and television receiver

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2598805Y (en) * 2003-02-17 2004-01-14 陈冠旭 Luminescent pedal structure for car door
CN2686928Y (en) * 2003-12-30 2005-03-23 上海圣禄汽车配件制造有限公司 Automobile door sill pedal thin board sudden light guide device
CN2824090Y (en) * 2005-01-21 2006-10-04 谢剑斌 Reinforced backlight module for astronautical stage liquid crystal display
CN2929456Y (en) * 2006-07-06 2007-08-01 伟志智能有限公司 Expansion type LED lighting source
WO2010038519A1 (en) * 2008-09-30 2010-04-08 シャープ株式会社 Illuminating device, display device and television receiver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108055863A (en) * 2015-09-17 2018-05-18 Zkw集团有限责任公司 In pixel light optical mode light source arrangement in the block

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Application publication date: 20110518